Nikon 20/25x RAIII Eyepiece - Spotting scopes at Optical-Systems.com

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Nikon 20/25x RAIII Eyepiece

Item number: NIK-BDB90170

69.00EUR

not in stock - ready to ship within approx. 3-5 days not in stock - ready to ship within approx. 3-5 days

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Dedicated eyepiece for use with RAIII WP series Spotting Scopes. Features a bayonet-type eyepiece mount with locking system for quick and secure connection, and a turn-and-slide eyecup.

Specifications
- Magnification : 20x when attached to a 65 mm diameter-objective model, and 25x when attached to an 82 mm diameter-objective model.
- Angular field of view (Real/degree) : 2.5 when attached to a 65 mm diameter-objective model and 2.0 when attached to an 82mm diameter-objective model.
- Angular field of view (Apparent/degree) : 50.0 when attached to both a 65 mm or 82 mm diameter-objective model.
- Field of view at 1000 m : Approximately 44 m when attached to a 65 mm diameter-objective model and 35 m when attached to an 82 mm diameter-objective model.
- Exit pupil : 3.3 mm when attached to both a 65 mm or 82 m diameter-objective model.
- Brightness : 10.9 when attached to both a 65 mm or 82 mm diameter-objective model.
- Eye relief : 18.0 mm when attached to both a 65 mm or 82 mm diameter-objective model.
- Weight : 170 g